427291277

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 530509824

約数和(自身を除く): 103218547

約数列:

[1, 7, 17, 71, 103, 119, 491, 497, 721, 1207, 1751, 3437, 7313, 8347, 8449, 12257, 34861, 50573, 51191, 58429, 124321, 244027, 354011, 592637, 859741, 870247, 3590683, 4148459, 6018187, 25134781, 61041611, 427291277]

約数ペア:

[(1, 427291277), (7, 61041611), (17, 25134781), (71, 6018187), (103, 4148459), (119, 3590683), (491, 870247), (497, 859741), (721, 592637), (1207, 354011), (1751, 244027), (3437, 124321), (7313, 58429), (8347, 51191), (8449, 50573), (12257, 34861)]